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  • ASTM D 2857 : 1995

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Standard Practice for Dilute Solution Viscosity of Polymers

    Available format(s):  Hardcopy, PDF

    Superseded date:  11-11-2014

    Language(s):  English

    Published date:  15-02-1995

    Publisher:  American Society for Testing and Materials

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    1.1 This practice covers the determination of the dilute solution viscosity of polymers. There are several ASTM standards (Test Methods D789, D1243, D1601, and D4603, and Practice D3591) that describe dilute solution viscosity procedures for specific polymers, such as nylon, poly(vinyl chloride), polyethylene, and poly(ethylene terephthalate). This practice is written to augment these standards when problems arise with which the specific procedure is not concerned, or when no standard is available for the polymer under investigation.

    1.2 This practice is applicable to all polymers that dissolve completely without chemical reaction or degradation to form solutions that are stable with time at a temperature between ambient and 150°C. Results are usually expressed as relative viscosity (viscosity ratio), inherent viscosity (logarithmic viscosity number), or intrinsic viscosity (limiting viscosity number) (see 3.1).

    1.3 For polyamides, relative viscosity values by this procedure are not equivalent to those determined by Test Methods D789.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

    Note 1—This standard and ISO 1628, "Plastics-Determination of Viscosity Number and Limiting Viscosity Number," are technically equivalent.

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    Committee D 20
    Document Type Standard Practice
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASTM F 2902 : 2016 : EDT 1 Standard Guide for Assessment of Absorbable Polymeric Implants
    ASTM D 1243 : 2015 Standard Test Method for Dilute Solution Viscosity of Vinyl Chloride Polymers
    ASTM F 2150 : 2013 Standard Guide for Characterization and Testing of Biomaterial Scaffolds Used in Tissue-Engineered Medical Products
    ASTM F 2313 : 2018 Standard Specification for Poly(glycolide) and Poly(glycolide-co-lactide) Resins for Surgical Implants with Mole Fractions Greater Than or Equal to 70 % Glycolide
    ASTM F 1925 : 2017 Standard Specification for Semi-Crystalline Poly(lactide) Polymer and Copolymer Resins for Surgical Implants
    ASTM F 624 : 2009 : R2015 : EDT 1 Standard Guide for Evaluation of Thermoplastic Polyurethane Solids and Solutions for Biomedical Applications
    ASTM F 561 : 2019 Standard Practice for Retrieval and Analysis of Medical Devices, and Associated Tissues and Fluids
    ASTM D 5336 : 2015 : REV A Standard Classification System and Basis for Specification for Polyphthalamide (PPA) Injection Molding Material
    ASTM D 5225 : 2017 Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
    ASTM D 5296 : 2011 Standard Test Method for Molecular Weight Averages and Molecular Weight Distribution of Polystyrene by High Performance Size-Exclusion Chromatography
    ASTM F 942 : 2018 Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures
    ASTM F 1635 : 2016 Standard Test Method for in vitro Degradation Testing of Hydrolytically Degradable Polymer Resins and Fabricated Forms for Surgical Implants
    ASTM F 2579 : 2018 Standard Specification for Amorphous Poly(lactide) and Poly(lactide-co-glycolide) Resins for Surgical Implants
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